acs.exe is a process of Analog Clock Scr screensaver that shows an analog clock. It is not malicious. You can terminate or remove it if you do not need it.

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If you find something wrong with this file, you might as well scan your computer with Spyware Doctor, because this file name may be used by some malware authors to trick internet users.

If you want to know the detail information about the file and manage it relaxedly, we recommend WinTasks 5 Pro for you.